The main ways of negative anthropogenic impact on ornamental and wild-growing plants are mechanical: trampling, compaction of the soil, cutting down trees; thermal: due to kindling fires; chemical: the release of harmful substances during the decomposition of garbage as a consequence of mass recreation of the population. The migration of new types of animals or insects that are not typical for a particular territory can also have negative consequences.
Positive anthropogenic impact includes the creation of new plantings and plant care (pruning, watering, whitewashing), maintaining soil fertility, and protecting against pests.
The negative consequences of urbanization for birds include: a significant decrease in the diversity of habitat types and the disappearance of some of them, soil coverage over large areas with asphalt and concrete, noise and pollution of the environment with toxic substances. It is also possible accidental (unintentional) destruction (on highways, on power lines, etc.)
As the positive aspects of this phenomenon, one can consider the emergence of abundant, albeit uniform food (food waste) and feeding, the creation of artificial nests (birds can use them for overnight stays in winter).
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